Question

(a) What is the aim of this experiment?
(b) What change do you observe in the thermometer reading?
(c) In your opinion, where did this heat come from?
(d) What precaution should we take while doing this experiment?

Answer 1

Hint: The experiment explains that the energy is required in the form of what for the germination of the seeds. There are several factors like respiration, heat, moisture, energy that are required in this experiment.

Complete answer:
(a) The aim of this experiment is to observe the process of respiration which releases heat energy for the process to continue and then results in the fermentation of seeds.
(b) During this process, the rise in temperature is observed thus leading to the rise in the level of mercury in the thermometer. This results in the rising of the thermometer reading.
(c) The process of respiration in the plants requires the breakdown of glucose molecules, these molecules when breaking down release energy in the form of the heat energy. Thus the process of respiration results in the release of heat energy.
(d) The important precaution that must be taken while performing this experiment is that the seeds must be kept moist. The process of respiration and germination of seeds will occur only when the seeds are moist. If due to some conditions the seeds are dry instead of moist then the process of respiration will not take place and hence the experiment will not be possible and will not be having accurate results.

Note:
With the help of germination by which an organism grows from a seed. The growth of seedlings from the seed is the most common form of germination. Developed seeds (sprouts) can even be eaten crudely or can consume subsequent to cooking. The seeds are sports germinate and giving out the shoot is known as sprouting. The plants that are already established produce new leaves or buds, or develop new parts experiencing further growth.